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Benzoyl chloride → Methyl 2-phenyl-benzoxazole-6-carboxylate

HRID 409924
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HRID 409924 반응식
[NH2:1][C:2]1[CH:11]=[CH:10][C:5]([C:6]([O:8][CH3:9])=[O:7])=[CH:4][C:3]=1[OH:12].[C:13](Cl)(=O)[C:14]1[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1>O1CCOCC1.C(Cl)Cl>[C:14]1([C:13]2[O:12][C:3]3[CH:4]=[C:5]([C:6]([O:8][CH3:9])=[O:7])[CH:10]=[CH:11][C:2]=3[N:1]=2)[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1
참가 물질반응 조건실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 2

HCID 7412Benzoyl chlorideHCID 7020619Benzoic acid, 4-amino-3-hydroxy-, methyl ester

생성물 1

HCID 10586965Methyl 2-phenyl-benzoxazole-6-carboxylate수율 85.6%

시약·촉매·용매 2

HCID 6344Dichloromethane용매HCID 312751,4-Dioxane용매

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온도
210 °C
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실험 절차

A mixture of methyl 4-amino-3-hydroxy-benzoate 25a (0.3 g, 1.8 mmol) and benzoyl chloride 25b (0.23 mL, 2.0 mmol) in dioxane (2.5 mL) was heated at 210° C. under microwave for 15 min. The reaction mixture was diluted with CH2Cl2 and washed with aq. NaHCO3. The organic solution was dried over Na2SO4, concentrated and purified by flash column chromatography (silica gel, 20% EtOAc/heptane) to give 25c (0.39 g).

후처리

  1. washwashed with aq. NaHCO3
  2. dry with materialThe organic solution was dried over Na2SO4
  3. concentrationconcentrated
  4. custompurified by flash column chromatography (silica gel, 20% EtOAc/heptane)

출처 및 근거

ORD 기록
ord-587702ed850f48d095c6c1f8c42e9670
출처 데이터셋
uspto-grants-2014_06
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08759533B2

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